Physics 313 Review Questions-Forces & Newton's Laws

A net force F accelerates a mass m with an acceleration a. If a net force 4F is applied to mass 5m, then the acceleration will be

• 5a

• 4a

• 5a/4

• 4a/5

You are in culinary and you drop a pie on the floor. Which of the following statements is true about the collision?

• the force on the pie is greater than the force on the floor

• the force on the floor is greater than the force on the pie

• The force on the pie is the same in maginitude as the force on the floor

• during the collision the pie has greater displacement than the floor

• during the collision the floor has a greater acceleration than the pie

When a soccer ball is hit by a foot, the force of the foot on the ball is equal and opposite to the force of the ball on the foot. This is an example of

• Newton's 1st Law

• Newton's 2nd Law

• The Law of Inertia

• Newton's 3rd Law

What is the net force? 

• 0 N
• 24 N right
• 24 N left
• 12 N left

Are these forces balanced or unbalanced?

• balanced
• unbalanced

Which of the following is the cause of an acceleration?

• speed

• inertia

• force

• velocity

Tags

NGSS.MS-PS2-2

Which of the following is the tendency of an object to maintain its state of motion?

• acceleration

• inertia

• force

• velocity

Gravitational force is also known as

• frictional force.

• weight.

• inertia.

• mass.

Tags

NGSS.MS-PS2-4

How much does a 3-kg bag of weigh?

• 7.2 N

• 14.4 N

• 22.8 N

• 29,4 N

Tags

NGSS.MS-PS2-4

If the force acting on a cart doubles, what happens to the cart's acceleration?

• It quarters.

• It halves.

• It stays the same.

• It doubles.

• It quadruples.

Tags

NGSS.MS-PS2-2